Yarn furnishing mechanism



Jan. 29, 1952 E. .1v HEIZER YARN FURNISHING MECHANISM Filed Sept. 6,1945 Junentor E g/ M (11% attorney Patented Jan. 29, 1952 UNITED STATESPATENT OFFICE YARN FURNISHING MECHANISM Edward J. Heller, West Caldwell,N. J., assignor to Specialties Development Corporation, Belleville, N.J., a corporation oi New Jersey Application September 6, 1946, SerialNo. 695,116

- the like, and relates more particularly to improvements in yarnfurnishing mechanisms of the type wherein the yarn is positively fedbetween a pair of feed rolls or cones.

A furnishing mechanism of the foregoing type which is used extensivelycomprises a pair of conical rolls one of which is driven by a source ofpower and the other of which idles in contact with the driven roll. Ithas been found desirable to provide one of the rolls with a hard surfacesuch as metal and to provide the other roll with a softer surface in theform of a leather covering or the like. Usually, the power driven rollhas the hard surface and the idling roll has the softer surface. Theyarn is impinged between these rolls and is positively fed upon rotationof the rolls.

A difllculty encountered with such furnishing rolls is that when themechanism is stopped, for example, between the end of the day and thebeginning of the next working day, the yarn impinged between the rollsis pressed into the soft surface of one of the rolls. In cases where theyarn being fed is of the synthetic type having considerable hardness,the yarn forms deep impressions or cuts in the soft facing of the roll.Upon starting the mechanism, these impressions are aggravated anddevelop into nicks, substantial cuts or other irregularities giving thesoft facing an uneven surface which during operation of the mechanismproduces harmful vibrations in the yarn and subjects the yarn toabrasive action. This is very undesirable because such vibration resultsin breakage of the yarn and fluctuations in tension to produce a packagewound under uneven tension. Abrasive action damages the surface of theyarn and results in the weakening thereof and the marring of theappearance of the yarn.

Another difliculty is that the hard roll sinks into the soft facing andproduces flats or impressions giving the soft facing an uneven surface.Such a surface produces vibrations in the yarn and subjects the rollhearings to strains due to uneven traction between the rolls.

The present invention aims to overcome the foregoing dimculties byarranging one of the rolls in a manner which enables it to be readily 3Claims. (Cl. 28-715) moved and held out of engagement with the otherroll while the mechanism is idle, whereby the yarn or the hard roll willnot form impressions or the like in the roll having the soft facing.

2 Accordingly, an object of the present invention is to provide afurnishing mechanism wherein the rolls are readily separated when not inuse.

Another object is to provide means for effecting separation and returnof the rolls in a simple manner without the use of tools.

Another object is to provide means for positively retaining the rollsout of engagement.

A further object is to provide means for accomplishing the foregoingwhich are simple and compact in arrangement and are inexpensive tomanufacture.

Other and further objects of the invention will be obvious ,upon anunderstanding of the illustrative embodiment about to be described, orwill be indicated in the appended claims, and various advantages notreferred to herein will ocour to one skilled in the art upon employmentof the invention in practice.

A preferred embodiment of the invention has been chosen for purposes ofillustration and description, and is shown in the accompanying drawing,forming a' part of the specification, wherein:

Figure 1 is a side elevational view of a furnishing mechanism embodyingthe present invention and illustrating the feed rolls in one position ofadjustment.

Figure 2 is a side elevational view of a portion of the mechanism shownin Figure 1 illustrating the feed rolls in another position ofadjustment.

Figure 3 is a top plan view of the mechanism with certain parts brokenaway for clearness.

Referring to the drawing in detail, there is shown a furnishingmechanism of the type used in connection with yarn or thread packagewinding machines. The mechanism comprises a bracket Ill for mounting themechanism on a winding machine, for example, a feed roll ll journalledfor rotation on the bracket and driven by a suitable source of power(not shown) through a shaft I 2, and a second feed roll it pivotallysupported on the bracket as about to be described and adapted to berotated by the roll II.

The feed rolls II and H are herein illustrated as cones which enable thethread passing therebetween to be moved towards or away from thecenters'of rotation of the cones to increase or decrease the rate offeeding in response to the thread demand by a tension regulating devicegenerally indicated by the reference "numeral It. The present inventionis not concerned with the tension regulating device and hence thetension regulating device need not be illustrated or described herein.However, such a device is shown cember 28, 1944, now Patent No.2,466,600.

The power driven cone H as previously mentioned has a hard metal surfaceI while the idling cone M has a relatively softer surface l5 provided bya leather cover or facing.

The mounting means for the cone It comprises an arm pivoted at one endon a screw or stud 2| secured to the bracket and having a dependingportion 22 at its other end, and a bearing housing 23 wherein the coneI4 is journalled for rotation. The bearing housing is connected to theportion 22 of the arm by a pin 24 extending through an aperture adjacentthe end of the arm and apertures formed in a pair of ears 25 on thehousing.

The arm 20 normally is urged in a direction to place the cone M incontact with the cone l i as shown in Figure 1. This is accomplished bya plunger 26 mounted on a support 21 secured to the bracket and acylindrical helical spring 29 surrounding the plunger and positionedbetween the head of the plunger and the support. The plunger engages theunderside of the arm outwardly of the stud 2| about which the arm pivotswhereby the plunger turns the arm in a counterclockwise direction.

In order to separate the cones when the device is idle, a lever 30 isprovided which is pivotally mounted at one end on a stud 28 extendingthrough a clearance hole 33 in the arm 20 (Fig. 3). Adjacent this end,the lever 30 has a laterally extending pin 31 which rests in a cam notch32 formed on the upperside of the arm 20 when the arm is in the positionshown in Figure 1 and which is effective to turn the arm in a clockwisedirection in opposition to the spring 29 to position the arm as shown inFigure 2 whereby the cones are separated. The other end of the lever hasa handle portion 34 adapted to facilitate manual operation thereof.

From the foregoing description, it will be seen that the presentinvention provides an improved yarn furnishing mechanism wherein thefeed rolls are adapted to be separated when idle in a simple andpractical manner to prevent damage to the facing or covering thereof.The device in accordance with the invention is rugged in constructionand can withstand any rough usage to which it may be subjected.

As various changes may be made in the form.

' construction and arrangement of the parts herein, without departingfrom the spirit and scope of the invention and without sacrificing anyof its advantages, it is to be understood that all matter herein is tobe interpreted as illustrative and not in any limiting sense.

It is also to be understood that the following claims are intended tocover all the generic and specific features of the invention hereindescribed, and all statements of the scope of the invention which, as amatter of language. might be said to fall therebetween.

I claim:

1. In a yarn furnishing mechanism, the combination of a drive shaft, afeed roll mounted on said shaft, a second feed roll adapted to engagesaid first roll and be rotated thereby, an arm pivotally mounting saidsecond roll; spring means engaging said arm to place said second roll inengagement with said first roll, and a lever having a portion engaging aportion of said arm to move said arm into a position whereby said secondroll is out of engagement with said first roll, said arm and leverportions being constructed and arranged for latching said second roll inout of engagement position and said spring means cooperating to urgesaid arm in a position to frictionally retain said arm and leverportions in latching position.

2. In a yarn furnishing mechanism, the combination of a pair ofrotatably mounted feed rolls one of which is adapted to rotate theother, a pivotally mounted arm rotatably supporting one of said rolls atone end thereof and having a cam notch adjacent its other end, springmeans engaging said arm to urge said roll mounted thereon intoengagement with said other roll, and a lever pivotally mounted adjacentsaid arm having a projection thereon adapted to extend into said notchwhen said arm is positioned for causing said rolls to engage each otherand being onerable to engage said arm adjacent said notch to positionsaid arm in opposition to said spring means for causing said rolls todisengage.

3. In a yarn furnishing mechanism. the combination of a pair ofrotatably mounted feed rolls one of which is adapted to rotate theother, an arm pivotally mounted at a point between the ends thereof androtatably supporting one of said rolls at one end thereof, spring meansengaging said arm at the other end thereof to urge said roll mountedthereon into engagement with said other roll, and a lever pivotallymounted adjacent the end of said arm engaged by said spring means havinga portion for engaging said arm at its last mentioned end to move saidarm into a position whereby said roll supported on said arm is out ofengagement with said other roll and said spring means and said leverportion cooperate to latch said arm in such position.

' EDWARD J. HEIZER.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,080,522 Boyd Dec. 2, 19131,594,958 Howie Aug. 3, 1926 1,682,333 Hart Aug. 28, 1928 1,782,470Heisler Nov. 25, 1930 1,840,642 Stone Jan. 12, 1932 1,867,635Swinglehurst July 19, 1932 2,061,498 Bird Nov. 17, 1936 2,072,452 HughesMar. 2, 1937 2,087,820 Sheppard July 20, 1937 2,273,052 Lawson 1 Feb.17, 1942 2,306,342 1 Marsh Dec. 22, 1942 2,333,705 Cooper Nov. 9. 1943

